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What reagents are used to treat acid wastewater

Established in 2001, Puyang Zhong Yuan Restar Petroleum Equipment Co.,Ltd, “RSD” for short, is Henan’s high-tech enterprise with intellectual property advantages and independent legal person qualification. With registered capital of RMB 50 million, the Company has two subsidiaries-Henan Restar Separation Equipment Technology Co., Ltd We are mainly specialized in R&D, production and service of various intelligent separation and control systems in oil&gas drilling,engineering environmental protection and mining industries.We always take the lead in Chinese market shares of drilling fluid shale shaker for many years. Our products have been exported more than 20 countries and always extensively praised by customers. We are Class I network supplier of Sinopec,CNPC and CNOOC and registered supplier of ONGC, OIL India,KOC. High quality and international standard products make us gain many Large-scale drilling fluids recycling systems for Saudi Aramco and Gazprom projects.

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What reagents are used to treat acid wastewater
Journal of Middle East Applied Science and Technology ...
Journal of Middle East Applied Science and Technology ...

Fifteen operated wells were ,analyzed, physicochemically to evaluate chemical quality of the study area. These evaluations included measuring pH, total hardness (TH), total dissolved solids in water (TDS), electrical conductivity (EC), magnesium (Mg), ,calcium, (Ca), sodium (Na), potassium (K), chloride (Cl ), sulfate (SO4), bicarbonate (HCO3).

Chain architectures of various cellulose-based ...
Chain architectures of various cellulose-based ...

14/12/2020, · Two series of cellulose-based antiscalants with different chain architectures, i.e., linear carboxymethyl cellulose (CMC) and branch-shaped carboxymethyl cellulose-graft-poly(acrylic ,acid,…

Ji Jun Study On Dephosphorization Technology For High ...
Ji Jun Study On Dephosphorization Technology For High ...

In the process of resource utilization of high phosphorus iron ores, phosphorus should be removed first. compared to other ,dephosphorization, methods, selective leaching with ,acid, has special advantages such as high ,dephosphorization, ratio, low iron loss and so on. however, a large amount of acidic ,wastewater, containing phosphorus was produced after ,acid, leaching.

Special treatment agent
Special treatment agent

IngredientsDenitrifying dephosphorizing ,agent, A complex cationic inorganic macromolecule flocculant with polyhydroxy complex as the core, which strongly complexes the negatively charged phosphate groups, and the hydrolyzate can adsorb a considerable amount of Amount of phosphorus nitrogen compounds. 2, performanceUnder normal circumstances, total phosphorus removal rate of 70%, ammonia removal rate of up to 80%. 3, useFor nitrogen and phosphorus containing industrial ,wastewater, …

Special treatment agent
Special treatment agent

IngredientsDenitrifying dephosphorizing ,agent, A complex cationic inorganic macromolecule flocculant with polyhydroxy complex as the core, which strongly complexes the negatively charged phosphate groups, and the hydrolyzate can adsorb a considerable amount of Amount of phosphorus nitrogen compounds. 2, performanceUnder normal circumstances, total phosphorus removal rate of 70%, ammonia removal rate of up to 80%. 3, useFor nitrogen and phosphorus containing industrial ,wastewater, …

Phosphate removal capability of modified dephosphorization ...
Phosphate removal capability of modified dephosphorization ...

Phosphate removal capability of modified dephosphorization ,agent, from high-phosphate hematite mineral processing ,wastewater, April 2010 Zhongguo Youse …

Ji Jun Study On Dephosphorization Technology For High ...
Ji Jun Study On Dephosphorization Technology For High ...

In the process of resource utilization of high phosphorus iron ores, phosphorus should be removed first. compared to other dephosphorization methods, selective leaching with ,acid, has special advantages such as high dephosphorization ratio, low iron loss and so on. however, a large amount of acidic ,wastewater, containing phosphorus was produced after ,acid, leaching.

CN107043157A - Mineral dephosphorization agent and ...
CN107043157A - Mineral dephosphorization agent and ...

The invention discloses a kind of mineral dephosphorization ,agent, and preparation method thereof, wherein, mineral dephosphorization ,agent, includes following components in percent by weight:1 3% SiO 2 , 8 10% Al 2 O 3 , 2 4% Fe 2 O 3 With 86 88% water;Preparing the method for mineral dephosphorization ,agent, includes:S1., mineral products are crushed to, ground to form the miberal …

CN109331773A - A kind of sewage dephosphorization agent ...
CN109331773A - A kind of sewage dephosphorization agent ...

The present invention relates to a kind of sewage dephosphorization ,agent, and preparation method thereof, this method is using the by-product in expanded perlite granule production process --- and expanded perlite micro mist is carrier,, large specific surface area loose porous using its, the stable feature of chemical property, surface heat modification is carried out using ferrous sulfate ...

Dephosphorization | Scientific.Net
Dephosphorization | Scientific.Net

Compared to other, dephosphorization, methods, selective leaching with acid has special advantages such as high, dephosphorization, ratio, low iron loss and so on. However, a large amount of, acidic wastewater, containing phosphorus was produced after acid leaching. Therefore, the rational use of, acidic wastewater, and decrease of acid consumption is ...

SECTION I - POPs
SECTION I - POPs

A double-contact, double-absorption plant ,should, emit no more than 0.2 kg of sulphur dioxide per ton of sulphuric ,acid, produced (based on a conversion efficiency of 99.7%). SO2 rich off-gases from smelting facilities pass through a gas cleaning train, which typically includes high efficiency dedusting, prior to the sulphuric ,acid, plant.

Dephosphorization of flotation wastewater containing ...
Dephosphorization of flotation wastewater containing ...

Dephosphorization of flotation ,wastewater, containing organophosphor using complex precipitation method. December 2014; Chinese Journal of Environmental Engineering 8(12):5367-5371

Improvements on activated sludge settling and flocculation ...
Improvements on activated sludge settling and flocculation ...

10/10/2019, · The eluent was 1 mM of KOH and the flow rate was 1.2 mL/min. Samples were hydrolyzed with 4 wt.% sulfuric ,acid, at 121 °C in oil bath (AC200, Thermo Fisher …

Dephosphorization of high phosphorus oolitic hematite by ...
Dephosphorization of high phosphorus oolitic hematite by ...

1/8/2017, · HCl is the, most appropriate leaching agent, for the, dephosphor,ization of, high phosphorus, oolitic haemaite. • The dephosphorization can reach 90% with less than 0.18% iron loss under the optimum leaching conditions. • The dephosphorization reaction in the acid leaching process was controlled by acid diffusion through the solid product layer.

Magnetic separation of phosphate contaminants from starch ...
Magnetic separation of phosphate contaminants from starch ...

10/12/2019, · CaO was added to the, water, sample as a, dephosphorization agent,, and the pH of the, water, sample was gradually adjusted from 6 to 11 using CaO. After the pH was stabilized, mechanical stirring was performed at 400 rpm for 10 min.

Environment and Climate Change Canada - Evaluating ...
Environment and Climate Change Canada - Evaluating ...

Boric ,acid, is a Lewis ,acid,, which, unlike a Brönsted-Lowry ,acid,, accepts ,hydroxide, ions instead of releasing protons. The structure is displayed on the left side of the equation in Figure 3-1. In dilute solutions (less than or equal to 0.025M, or ~0.27 g B/L) (IPCS 1998), which encompasses the environmentally and physiologically likely range, boric ,acid, is in equilibrium with the borate anion ...

[PDF] Dephosphorization of Vanadate Leaching Solution by ...
[PDF] Dephosphorization of Vanadate Leaching Solution by ...

CaCl2 was generally used as dephosphorizing ,agent, during the sodiumization-vanadium extraction process. However, a large number of chloride ions were brought into ,wastewater, from vanadium precipitation, which increased the corrosion of the evaporation-concentration equipments of ,wastewater, treatment. Then, the chloride-free dephosphorizing ,agent, (CFDA) was developed, and the …

Catalog of papers | CEST2019
Catalog of papers | CEST2019

Recovery of phosphorus and nitrogen from municipal and other types of ,wastewater, may be achieved through the direct crystallization of struvite (magnesium ammonium phosphate hexahydrate, Mg•NH4•PO4•6H2O). ,Wastewater, deficiency in magnesium makes it necessary for the external addition of magnesium to make up for the supersaturation needed.

caoh cahpo Publications | PubFacts
caoh cahpo Publications | PubFacts

A ,comprehensive, examination of how the identity of an alcohol molecule can change the behavior of a solvated, ... Pretreatment methods included were dilute sodium ,hydroxide, (NaOH), dilute sulfuric ,acid, (HSO), liquid hot water (LHW), ,calcium hydroxide, (CaOH), ... A case report is presented that demonstrates the use ,of calcium hydroxide, ...

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